Figure 2.
Circulating Tfh subsets at iTTP presentation and ADAMTS13 relapse. Percentages of total cTfh (CD4+CXCR5+) (A), PD1+ cTfh (CD4+CXCR5+PD1+) (B), ICOS+ cTfh (CD4+CXCR5+ICOS+) (C), and PD1+ICOS+ cTfh (CD4+CXCR5+PD1+ICOS+) (D) in patients with acute iTTP episodes (n = 34), ADAMTS13 relapse (n = 27), and HC (n = 27).